Version Differences
Weapon Get Cut Scenes
The most obvious difference between the US and Japanese release of the game are the cutscenes after clearing one of the 8 robot stages. On the US cart, you only ever see Dr. Light talk to Mega Man. On the J cart, you can see any of Dr. Light, Roll, or Auto.
Typically Dr. Light is the fastest conversation, and Auto the longest. The notable exception is "Burst Roll".
Timing Differences
Data courtesy PJ. Better Formatting in progress
Segment
NA (
Totime)
DoJP (diff)
JP (Light)
JP (Auto)
JP (Roll)
JP (Average)
JP (Best)
JP (Worst)
Intro
123.278
-
6.922
-6.922
-6.922
-6.922
Bass dialogue
12.995
-0.216
-0.216
-0.216
-0.216
Cloud proto
14.459
-0.765
-0.765
-0.765
-0.765
Cloud weapon get
a27.521
table of
-3.611
0.799
0.666
-0.715
-3.611
0.799
Junk end load
2.446
-0.017
-0.017
-0.017
-0.017
Junk weapon get
28.686
-3.943
1.032
-0.566
-1.159
-3.943
1.032
Freeze weapon get
26.306
-1.048
5.075
3.278
2.435
-1.048
5.075
Burst weapon get
27.754
-4.210
2.363
6.872
1.675
-4.210
6.872
Pre-museum lab
49.900
-11.913
-11.913
-11.913
-11.913
Post-museum lab scene
7.338
-0.383
-0.383
-0.383
-0.383
Turbo proto
14.093
-0.599
-0.599
-0.599
-0.599
Turbo weapon get
25.973
-1.414
2.047
3.311
1.314
-1.414
3.311
Shade load
19.651
-0.050
-0.050
-0.050
-0.050
Shade proto 1
18.486
-3.611
-3.611
-3.611
-3.611
Shade proto 2
36.106
-2.313
-2.313
-2.313
-2.313
Shade weapon get
28.486
0.150
5.724
2.529
2.801
0.150
5.724
Slash weapon get
23.910
0.083
4.509
6.123
3.572
0.083
6.123
Spring weapon get
27.920
-3.877
1.464
-0.266
-0.893
-3.877
1.464
Lab cutscene
times76.456
here)-6.805
-6.805
-6.805
-6.805
Bass 1 intro
10.532
1.980
1.980
1.980
1.980
Bass 1 end
7.754
-1.864
-1.864
-1.864
-1.864
Bass 2 intro
18.885
1.697
1.697
1.697
1.697
Bass 2 end
8.719
2.629
2.629
2.629
2.629
